Thread (30 messages) 30 messages, 4 authors, 2025-12-02

Re:[PATCH v7 08/17] ACPI: pci_link: Clear the dependencies after probe

From: huyuye <hidden>
Date: 2025-12-01 13:09:55
Also in: linux-pci, linux-riscv, lkml

Hi, sunilvl

Based on the above patch, I understand that you previously resolved dependencies between Link devices and PCI Host Bridges by calling acpi_dev_clear_dependencies(device). I would like to ask: on RISC‑V platforms, if we need to manage dependencies between multiple PCI Host Bridges, could this be addressed by adding a call to acpi_dev_clear_dependencies(device) at the end of the acpi_pci_root_add enumeration function?

Initialization order dependencies can be defined via the ACPI _DEP method in the DSDT. For example, if host bridge B depends on host bridge A, bridge B should not be enumerated until bridge A is fully initialized.

Best regards,
Yuye

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